I need answer ASAP
A water molecule starts in hot bath water and ends up on the surface of the bathroom mirror. Which of the following most likely happened during the transition?

A. Some of the water molecules became vapor, then condensed back into droplets on the mirror.

B. The water from the bath evaporated and turned solid on the mirror.

C. The water in the bath solidified, then melted and evaporated before ending up on the mirror.

D. Some of the water molecules condensed on the side of the tub, then melted back into vapor to travel to the mirror.

Excuse ! extra points plus ! super desperate ! the position of an object does not move relative to a reference point. relative to the reference point the object _. a.) is not moving. b.) is moving.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)